eventlog: Add todo
mac setup: Fix font on error page
fetcher git: Configure line endings correctly. Fixes #1568
extensions: Timestamps < 24h ago can also be yesterday
Removed P/Invokes, now uses native ContextMenu handling.
Use LastWriteTime instead of CreationTime
Merge pull request #1574 from BarryThePenguin/patch-1

Use LastWriteTime instead of CreationTime
Merge pull request #1567 from Silvenga/master

Improved Icon Menu Handling
plugins: Spell GitHub properly
avatars: Fix #1576
Squirrel integration

- changed to .NET 4.5
- added nuget
- added nuspec file for releases
- Created basic events for UpdateManager
- Updater runs at the end of UIHasLoaded
- SparkleAbout now gets updates from the UpdateManager
- SparkleInviteOpener now manages protocolhandler installation and maintenance
- SparkleInviteOpener now handles github and sourcetree protocols, fixes #1570 for windows
- Discovered HKEY_CURRENT_USER\Software\Classes merges with HKEY_CLASSES_ROOT so no need to elevate privileges to add protocol handlers
- Close SparkleShare on Update or Uninstall
- Preparation for squirrel update